Magnetic weighing scale



FIG. 1 is a front perspective view of a magnetic weighing scale showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a right side elevational view thereof, the side opposite being substantially a mirror image;

FIG. 4 is a top plan view thereof; and

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a magnetic weighing scale, substantially as shown and described. 